具有高端口间隔离度的全双工双宽带喇叭天线

IF 4.6 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2024-10-01 DOI:10.1109/TAP.2024.3467693

Yulin Tao;Changjiang Deng;Xiaowei Cao;Kamal Sarabandi

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引用次数: 0

摘要

介绍了一种高度隔离的双波段全双工天线子系统，工作频率为 8-18 千兆赫（X/Ku 波段）和 32-40 千兆赫（Ka 波段）。每个波段包括两个并列的锥形喇叭天线。在低频段使用 3 dB 耦合器，在高频段使用隔膜极化器，从而产生双圆极化（CP）。这两对喇叭嵌入一个金属圆筒内并与圆筒并排，X/Ku 波段的边缘到边缘距离为 240 毫米，Ka 波段的边缘到边缘距离为 75 毫米。为了提高收发隔离度，在圆柱形腔体的侧壁上蚀刻了三组环形波纹，并在 X-/Ku 波段的喇叭周围添加了共形吸收器。我们制作并测量了一个原型天线系统。测得的 X/Ku 波段 Tx-Rx 隔离度大于 80.9 dB，Ka 波段大于 71.6 dB。两个波段的测量增益分别高于 14.3 和 20.1 dBiC。

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A Full-Duplex Dual Wideband Horn Antenna With High Port-to-Port Isolation

A highly isolated dual-band full-duplex antenna subsystem operating at 8–18 GHz (X-/Ku-band) and 32–40 GHz (Ka-band) is presented. Each band includes two conical horn antennas which are juxtaposed side-by-side. Dual circular polarization (CP) is generated by using a 3 dB coupler in the lower band and a septum polarizer in the upper band. The two pairs of horns are embedded within and alongside a metallic cylinder with an edge-to-edge distance of 240 mm for the X-/Ku-band and 75 mm for the Ka-band. In order to increase the Tx-Rx isolation, three sets of annular corrugations are etched on the side wall of the cylindrical cavity and conformal absorbers are added around the horns in X-/Ku-band. A prototype antenna system is fabricated and measured. The measured Tx-Rx isolation is greater than 80.9 dB in the X-/Ku-band and 71.6 dB in the Ka-band. The measured gain in the two bands is higher than 14.3, and 20.1 dBiC, respectively.

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来源期刊

IEEE Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques